<template>
<div class="home-brand" ref="target">
  <HomePanel  title="热门品牌" sub-title="国际经典 品质保证">
    <template v-slot:right>
      <a href="javascript:;" @click="curIdx=0" :class='{disabled:curIdx===0}' class="iconfont icon-angle-left prev"></a>
      <a href="javascript:;" @click="curIdx=1" :class='{disabled:curIdx===1}' class="iconfont icon-angle-right next"></a>
    </template>
    <div class="box" v-if="brands.length">
      <ul class="list" :style="transX" >
        <li v-for="item in brands" :key="item.id">
          <RouterLink to="/">
            <img :src="item.picture" alt="">
          </RouterLink>
        </li>
      </ul>
    </div>
    <div v-else class="skeleton">
      <XtxSkeleton class="item" v-for="i in 5" :key='i' bg='#e4e4e4' width='240px' height='305px' />
    </div>
  </HomePanel>
</div>
</template>

<script>
import HomePanel from './home-panel'
import { computed, ref } from 'vue'
import { findBrand } from '@/api/home'
import useLazyData from '@/compositions/index'
export default {
  name: 'HomeBrand',
  components: { HomePanel },
  setup () {
    // 获取数据
    const brands = ref([])
    const fn = () => {
      findBrand(10).then(data => {
        brands.value = data.result
      })
    }
    // 切换效果
    const curIdx = ref(0)
    const transX = computed(() => {
      const t = -1200 * curIdx.value
      return `transform: translateX(${t}px)`
    })
    const target = useLazyData(fn)
    return { brands, transX, curIdx, target }
  }
}
</script>

<style scoped lang='less'>
  .skeleton {
    width: 100%;
    display: flex;
    .item {
      margin-right: 10px;
      &:nth-child(5n) {
        margin-right: 0;
      }
    }
  }
.home-panel {
  background:#f5f5f5
}
.iconfont {
  width: 20px;
  height: 20px;
  background: #ccc;
  color: #fff;
  display: inline-block;
  text-align: center;
  margin-left: 5px;
  background: @xtxColor;
  &::before {
    font-size: 12px;
    position: relative;
    top: -2px
  }
  &.disabled {
    background: #ccc;
    cursor: not-allowed;
  }
}
.box {
  display: flex;
  width: 100%;
  height: 345px;
  overflow: hidden;
  padding-bottom: 40px;
  .list {
    width: 200%;
    display: flex;
    transition: all 1s;
    li {
      margin-right: 10px;
      width: 240px;
      &:nth-child(5n) {
        margin-right: 0;
      }
      img {
        width: 240px;
        height: 305px;
      }
    }
  }
}
</style>
